46 03 6 6 A7 ___B7__ 五、發明說明（1 ) 發明背景 本發明有關一種切割工件內角之方法及一種切割內角 之切割工具。 (請先閱讀背面之注意事項再填寫本頁> 爲了切割工件的內角（譬如工件囊袋的內角，如模中 之模孔）•加工時一般使用一個旋轉的切割工具（如柱狀 端銑機）或在放電加工時使用一個桿電極、一個線電極等 〇 以端銑機切割囊袋時，無法對於具有小於工具半徑的 曲率半徑之內角進行加工（R角的加工），因此端銑機的 半徑需小於內角的最小曲率半徑。此外’若囊袋很深，則 需要長型的小直徑工具，並可能因爲工具本身的剛性不足 而產生不當切割。並且在端銑加工時’無法加工稱爲'^針 角（pin degrees ) 〃之具有銳角的內角（譬如9 0度）。 經濟部智慧財產局員工消費合作社印製 因此，當內角加工成小的曲率半徑、且使囊袋具有大 的深度或加工上述的針角時’ 一般已使用放電加工而非切 割工具進行切割。但相較於切割的加工效率’放電加工具 有加工能力不足之缺點，故增高加工成本。此情形中’亟 需免去放電加工以縮短加工的前置時間’而以單一工具機 完成所有加工。 發明槪論 因此本發明的一項目的係提供一種內角切割方法’可 由切割有效地完成上述的工作（亦即，形成具有小曲率半 徑及具有大深度的囊袋之一個內角；形成具有稱爲’針角 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -4- 經濟部智慧財產局W工消費合作钍印製 460366 A7 ______B7 五、發明說明（2 ) A的譬如90度銳角之一個內角），並進一步提供一種用 於實施內角切割方法之切割工具。 爲了達成上述目的，本發明提供具有下列特徵之內角 切割方法，首先，此方法所用的一種切割工具在底部形成 有至少一個切割邊緣且受驅動而旋轉。切割工具及待加工 的工件依照切割工具的旋轉角度而彼此相對移動，使得切 割工具形成一個移動軌的外端係與作爲待加工物件之工件 內角輪廓相符合。並且，切割工具沿旋轉的切割工具的轉 軸方向移動，由此說明書可瞭解：切割工具的轉軸與通過 切割工具的旋轉中心之縱軸相同。 根據上述方法，再度使用具有切割邊緣之切割工具。 以此方式旋轉的切割工具及待加工工件相對移動的方式可 使得：切割邊緣的一個外端形成與工件內角輪廓相符之移 動軌，而切割工具亦沿旋轉的切割工具的轉軸方向產生位 移。因此，工具雖然維持足夠剛性，仍可僅以切割即有效 達成上述工作（亦即形成具有小曲率半徑及大深度囊袋之 內角；形成具有譬如9 0度所謂^針角^等銳角之內角） ύ 切割工具及工件可在與切割工具的轉軸相交之一個平 面中彼此相對移動。並且，在切割工具於轉軸方向移動全 程中，切割工具與工件之間具有固定且不變的相對移動。 上述方法中，在切割工具於轉軸方向移動全程中在轉 軸相交平面具有固定且不變的相對移動之條件下，執行內 角的切割。因此僅藉由有效率的切割，即可對於垂直面後 本紙張尺度適用中國國家標準（CNS)A4規格（210 * 297公釐） -5- — —！裝-----— 訂------I--線 {請先閲讀背面之注意事項再填寫本頁) 經濟部智慧財產局貝工消費合作社印製 4 6 03 6 6 A7 _____B7___ 五、發明說明（3 ) 續（亦即與工具轉軸平行之表面）之內角達成R (圓形） 加工及 ''針角〃加工。 另外，與在轉軸方向中之切割工具移動相對應，而改 變切割工具與工件之間的相對移動。 此情形中，在與切割工具在轉軸方向中的移動相對應 地改變與轉軸相交平面中之相對移動的條件下’執行內角 的切割。因此僅藉由有效率的切割，即可對於傾斜面後續 (亦即與工具轉軸呈傾斜之表面）之內角達成R (圓形） 加工及A針角"加工。 上述方法中，可採用一種切割工具’包括可脫離式附 接至工具機的一個主心軸之一個主體，以沿轉動的切割工 具的轉軸旋轉，以及排列在與轉軸相偏離的一個直線上且 亦固定在主體的一個底面上之一個切割邊緣。因爲採用切 割工具而可有效率地實施上述方法。 在此切割工具的適當情形中，主體的底面在平面圖中 實質可具有多角型構造。並且，切割邊緣可排列在多角型 的一側上以從多角型的一個頂點往另一個頂點延伸*且切 割邊緣可具有槪等於多角型一個側邊的一半長度。主體的 底面可在切割邊緣後方處設有一個溢流'角。由於採用 切割工具，可更有效率地實施上述方法。 由下列的硏究及申請專利範圍並參照圖式，可更瞭解 本發明的上述及其他特徵與優點並瞭解本發明本身，圖中 顯示本發明之一項較佳實施例。 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -6 · — — — — —--I I I I--- ----：--I I I--I I I I (請先閱讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 4 6 03 6 6 A7 ___B7 五、發明說明（4 ) 圖式簡單說明 圖1爲實施本發明的內角切割方法之工具機之一項範 例之立體圖； 圖2爲實施內角切割方法之一切割工具之立體圖，圖 中的切割工具處於顛倒#狀態中； 圖3爲實施本發明的內角切割方法之切割工具之仰視 圖； 圖4爲根據本發明的內角切割方法以切割內角（R) 之一項範例之平面圖； 圖5爲根據本發明的內角切割方法以切割一個針角型 角之一項範例之平面圖； 圖6爲9 0度針角加工情形的切割工具的一個依序移 動軌之說明圖； 圖7 A以切割方式在具有垂直面的內角上施加圓角之 一項範例之立體圖； 圖7 B以切割方式在具有垂直面的內角上施加針角之 一項範例之AA體圖， 圖8爲切割具有斜面的內角之一項範例之立體圖； 圖9爲實施本發明的內角切割方法之另一工具機之仰 視圖。 符號說明 1 X軸台 2 Y軸台 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） I ----------I — - I I I L--! I I--- 1^ {請先閱讀背面之注意事項再填寫本頁) 4 6 03 66 經濟部智慧財產局員工消費合作社印製 A7 B7 五、發明說明（5 ) 3 心軸柄 4 主心軸 5 X軸伺服馬達 6 X軸進給機構 7 Y軸伺服馬達 8 Y軸進給機構 9 Z軸伺服馬達 10 Z軸進給機構 11 旋轉加碼器 12 旋轉加碼器 13 旋轉加碼器 14 心軸馬達 15 旋轉加碼器 20 數値控制單元 5 0 切割工具 5 0a 主體 5 1 底面 5 2 切割邊緣 5 2 a 外脊線 53 切割邊緣 53a 外脊線 5 4 切割邊緣 5 4 a 外脊線 5 5 側腹 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐) ΓΤΓ I ----I I I I---I -till· — — — ^ -------- (請先閱讀背面之注意事項#填寫本頁) 經濟部智慧財產局員工消費合作社印製 4 6 03 6 6 A7 _ B7_ 五、發明說明（6 ) 5 6 側腹 5 7 側腹 5 8 柱狀塊 5 9 碎解槽 60 三葉狀及拋開式切割工具 62 可脫離式尖端 63 可脫離式尖端 64 可脫離式尖端 7 0 基座 7 1 導軌 7 2 導軌 7 3 導軌 W 工件 a 頂點 b 頂點 c 頂點 P 囊袋 1 內角 X 1 點 X 2 點 X 3 點 0 點 y 1 點 y 2 點 ----- --------- I---..---—訂·----- (請先閱讀背面之注意事項為填寫本頁) 本紙張又度適用中國园家標準（CNS)A4規格（210 X 297公蔆） -9 - 4 6 03 6 6 A746 03 6 6 A7 ___B7__ 5. Description of the invention (1) Background of the invention The present invention relates to a method for cutting the inner corner of a workpiece and a cutting tool for cutting the inner corner. (Please read the precautions on the back before filling in this page> In order to cut the inner corner of the workpiece (such as the inner corner of the workpiece pocket, such as the die hole in the mold) • Generally use a rotating cutting tool (such as a columnar shape) during processing End milling machine) or using a rod electrode, a wire electrode, etc. during electrical discharge machining. When cutting an capsular bag with an end milling machine, it is not possible to process internal angles with a radius of curvature smaller than the tool radius (processing of the R angle), so The radius of the end mill must be less than the minimum radius of curvature of the inner corner. In addition, 'if the pocket is deep, long and small diameter tools are needed, and improper cutting may occur due to insufficient rigidity of the tool itself. 'Unprocessable is called' ^ pin angle 〃 is an internal angle with an acute angle (such as 90 degrees). Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. Therefore, when the internal angle is processed into a small radius of curvature, and When the pouch has a large depth or when the above-mentioned needle angle is processed, 'Electro-discharge machining is generally used instead of cutting tools. However, compared to the processing efficiency of cutting,' e-discharge machining has The shortcomings of insufficient work capacity increase the processing cost. In this case, 'emergency discharge processing is needed to shorten the processing lead time' and all processing is completed with a single machine. Inventive Theory Therefore, one object of the present invention is to provide An internal angle cutting method 'can effectively perform the above-mentioned work by cutting (that is, forming an internal angle of a sac with a small radius of curvature and a large depth; forming a paper with a size called a “pin angle” applicable to Chinese national standards ( CNS) A4 specification (210 X 297 mm) -4- Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs, Industrial and Commercial Cooperation, 460366 A7 ______B7 V. Description of the invention (2) A, such as an internal angle of 90 degrees, and further A cutting tool is provided for implementing an inside corner cutting method. In order to achieve the above object, the present invention provides an inside corner cutting method having the following features. First, a cutting tool used in this method has at least one cutting edge formed at the bottom and is driven. While rotating. The cutting tool and the workpiece to be processed are moved relative to each other according to the rotation angle of the cutting tool, so that the cutter The outer end forming a moving rail is in accordance with the contour of the inner corner of the workpiece as the object to be processed. Moreover, the cutting tool moves in the direction of the rotation axis of the rotating cutting tool, so that the manual can understand: the rotation axis of the cutting tool and the The vertical axis of the rotation center is the same. According to the above method, the cutting tool with cutting edge is used again. The cutting tool rotated in this way and the relative movement of the workpiece to be processed can make: the outer end of the cutting edge forms the contour of the inner angle of the workpiece The moving track is matched, and the cutting tool is also displaced along the rotation axis of the rotating cutting tool. Therefore, although the tool maintains sufficient rigidity, it can still effectively achieve the above work only by cutting (that is, forming a capsule with a small radius of curvature and a large depth The inner angle of the bag; forming an inner angle with an acute angle such as 90 degrees (the so-called ^ pin angle ^) The cutting tool and the workpiece can move relative to each other in a plane that intersects the rotation axis of the cutting tool. In addition, during the movement of the cutting tool in the direction of the rotation axis, there is a fixed and constant relative movement between the cutting tool and the workpiece. In the above method, the cutting of the inside corner is performed under the condition that the rotation axis intersects the plane with a fixed and constant relative movement during the entire movement of the cutting tool in the rotation axis direction. Therefore, only by efficient cutting, the paper size can be applied to the Chinese National Standard (CNS) A4 specification (210 * 297 mm) -5- — —! Install ------ Order ------ I--line {Please read the notes on the back before filling out this page) Printed by Shelley Consumer Cooperatives, Bureau of Intellectual Property, Ministry of Economic Affairs 4 6 03 6 6 A7 _____B7___ 5 2. Description of the invention (3) Continued (that is, the surface parallel to the axis of rotation of the tool) to achieve R (circular) processing and `` pin angle processing ''. In addition, the relative movement between the cutting tool and the workpiece is changed corresponding to the movement of the cutting tool in the rotation axis direction. In this case, the cutting of the inner angle is performed under the condition that the relative movement in the plane intersecting the rotation axis is changed corresponding to the movement of the cutting tool in the rotation axis direction. Therefore, only by efficient cutting, R (round) machining and A-pin angle " processing can be achieved for the internal angle of the subsequent surface of the inclined surface (that is, the surface inclined with the tool rotation axis). In the above method, a cutting tool may be used that includes a main body detachably attached to a main mandrel of the machine tool to rotate along the rotation axis of the rotating cutting tool, and is arranged on a straight line that is offset from the rotation axis and It is also fixed to a cutting edge on a bottom surface of the main body. The above-mentioned method can be carried out efficiently by using a cutting tool. In the appropriate case of this cutting tool, the bottom surface of the main body may have a substantially polygonal configuration in plan view. Also, the cutting edge may be arranged on one side of the polygon type to extend from one vertex of the polygon type to the other vertex *, and the cutting edge may have a length equal to half of one side of the polygon type. The bottom surface of the body may have an overflow 'angle behind the cutting edge. Due to the use of cutting tools, the above method can be implemented more efficiently. The above-mentioned and other features and advantages of the present invention and the present invention itself can be better understood from the following research and patent application scope and reference to the drawings. A preferred embodiment of the present invention is shown in the figure. This paper size applies to Chinese National Standard (CNS) A4 (210 X 297 mm) -6 · — — — — —-III I --- ----: --II I--IIII (Please read first Note on the back, please fill out this page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 4 6 03 6 6 A7 ___B7 V. Description of the invention (4) Brief description of the drawing Figure 1 is a tool for implementing the method of cutting the inner corner of the present invention A perspective view of an example of a cutting machine; Figure 2 is a perspective view of a cutting tool implementing one of the internal corner cutting methods, the cutting tool in the figure is in an inverted # state; Figure 3 is a bottom view of a cutting tool implementing the internal corner cutting method of the present invention Figure 4 is a plan view of an example of the internal angle cutting method according to the present invention to cut the internal angle (R); Figure 5 is an example of the internal angle cutting method according to the present invention to cut a pin angle type Plan view; FIG. 6 is an explanatory view of a sequential moving rail of a cutting tool in the case of a 90-degree needle angle processing; FIG. 7A is a perspective view of an example of applying a rounded corner to an inner corner having a vertical plane in a cutting manner; FIG. 7 B in a cutting manner AA body view of an example of a needle angle applied to an inner angle. FIG. 8 is a perspective view of an example of cutting an inner angle with a bevel. FIG. 9 is a bottom view of another machine tool for implementing the inner angle cutting method of the present invention. . Explanation of Symbols 1 X-axis stage 2 Y-axis stage The paper size applies to the Chinese National Standard (CNS) A4 (210 X 297 mm) I ---------- I--III L--! I I- -1 ^ {Please read the notes on the back before filling in this page) 4 6 03 66 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the invention (5) 3 Mandrel handle 4 Main mandrel 5 X Axis servo motor 6 X-axis feed mechanism 7 Y-axis servo motor 8 Y-axis feed mechanism 9 Z-axis servo motor 10 Z-axis feed mechanism 11 Rotary coder 12 Rotary coder 13 Rotary coder 14 Spindle motor 15 Rotary coder 20 Control unit 5 0 Cutting tool 5 0a Main body 5 1 Bottom surface 5 2 Cutting edge 5 2 a outer ridge line 53 cutting edge 53a outer ridge line 5 4 cutting edge 5 4 a outer ridge line 5 5 Applicable to China National Standard (CNS) A4 (210 X 297 mm) ΓΤΓ I ---- III I --- I -till · — — — ^ -------- (Please read the note on the back first Matters # Fill in this page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 4 6 03 6 6 A7 _ B7_ V. Description of the invention (6) 5 6 Lateral abdomen 5 7 Lateral abdomen 5 8 pillars Block 5 9 Breaking slot 60 Trilobal and throwaway cutting tool 62 Detachable tip 63 Detachable tip 64 Detachable tip 7 0 Base 7 1 Guide 7 2 Guide 7 3 Guide W Workpiece a vertex b vertex c Vertex P Pouch 1 Internal angle X 1 point X 2 points X 3 points 0 points y 1 point y 2 points ----- --------- I ---..----- order · ----- (Please read the note on the back first to fill in this page) This paper is again applicable to China Garden Standard (CNS) A4 (210 X 297 male diamond) -9-4 6 03 6 6 A7
經濟部智慧財產局員工消費合作ii印製 五、發明說明（7 ) y 3 點 q X 1 點 q X 2 點 Q X 3 點 Q 〇 點 q y 3 點 q y 2 點 R 半徑 較佳實施例的描述 參照圖式以描述本發明的實施例》 圖1顯示用於實施本發明的內角切割方法之工具機， 此工具機具有一個基座70;—個X軸台1;一個Y軸台 2 :—個心軸柄3 ;及一個主心軸4。X軸台1在X軸方 向可移式配置於基座7 0的導軌7 1上，Y軸台2在Y軸 方向中於X軸台1上可移式配置於導軌7 2上。心軸柄3 在Z軸向可移式配置於基座7 0的導軌7 3上，主心軸4 附接至心軸柄3 ，一個待加工的工件W支撐在Y軸台2上 經由以一個X軸伺服馬達5驅動的一個X軸進給機構 6 將X軸台1移動至X軸方向。經由以一個Y軸伺服馬 達7驅動的一個Y軸進給機構8將Y軸台2移動至Y軸方 向。經由以一個Z軸伺服馬達9驅動的一個Z軸進給機構 1 0將心軸柄3移動至Z軸方向。X、Y、Z軸的各別伺 裝-----r---訂---------線 (請先閲讀背面之注f項再填寫本頁) 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -10- 4 6 0 3 6 6 A7 B7 五、發明說明（8 ) 服馬達5、7、9分別設有旋轉加碼器1 1 、1 2 ' 1 3 〇 <請先閱讀背面之注意事項两填寫本頁) 主心軸4由一個心軸馬達1 4所驅動，心軸馬達1 4 附接有一個旋轉加碼器1 5以偵測心軸4的旋轉角度，主 心軸4設有一個切割工具5 0。 實施例的工具機與一種包括一個數値控制單元2 0之 數値控制型機器相同，將與旋轉加碼器1 1 、1 2、1 3 、1 5相距的位置及旋轉角度之相關資訊分別輸入數値控 制單元2 0中。單元2 0依據預定的加工程序而藉由心軸 馬達1 4及各別軸之伺服馬達5、7、9的運作來控制主 心軸4的旋轉。 圖2及3顯示用於執行本發明內角切割方法之一個切 割工具，請瞭解圖2顯示頂面朝上呈顛倒狀之切割工具， 圖3顯示切割工具之仰視圖。 經濟部智慧財產局員工消費合作社印製 基本上，本發明的切割工具爲一種旋轉型切割工具， 此切割工具在一個多角型（如三角型 '方形、五角型等） 底部的至少一側邊上或多角型側邊的一個周邊上具有一個 切割邊綠。圖示實施例中，切割工具5 0包括一個主體 5 0 a ’此主體5 0 a具有一個正三角型底面5 1及分別 形成在底面5 1各側邊上之三個切割邊緣5 2、5 3、 54。形成切割邊緣52、53、54，以在切割工具 5 0旋轉方向中於各別頂點a、b、c前方延伸，並具有 實質分別爲各側邊的一半長度。在工具5 0的旋轉方向中 於底面5 1上的各別切割邊緣後方，形成有各別導往其他 11 本纸張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐 經濟部智慧財產局員工消費合作社印製 6 03 6 6 A7 _____B7_ 五、發明說明（9 ) 切割角之各別的“溢流”角（亦即側腹5 5、5 6、5 7 )。 此實施例中，切割邊緣5 2、5 3、5 4形成於分別在工 具5 0軸向中自頂點a 、b ' c延伸之各別外脊線5 2 a 、5 3 a、5 4 a 上。 切割工具5 0包括一個柱狀塊5 8，此柱狀塊5 8通 過正三角型底面5 1的內心並沿工具5 0軸向延伸。由主 心軸4的一個未圖示塊握持時，塊5 8亦以圖2及3的逆 時針方向沿工具5 ◦軸線旋轉。請瞭解碎解槽5 9形成於 切割邊緣52、53、54附近（前側）以碎解切屑。碎 解槽5 9的運作可改變排出的切屑以引導工件W，故沿槽 5 9將切屑固化。結果藉由與工件W相接觸來碎解切屑。 並且，提供碎解槽5 9將有助於形成切割邊緣5 2、5 3 、5 4之尖銳鼻部。因此由於提供具有尖銳鼻部之切割邊 緣，可降低切割阻力而改良可加工性=因此，具有碎解槽 5 9之切割工具5 0係適合目前的切割方法，以改變切割 寬度。請瞭解僅需以根據工件W的材料來提供碎解槽5 9 〇 當需要在工件（W)的一個囊袋P中切割形成一個內 角（1 )時，首先以主心軸4執行切割工具5 0的旋轉。 然後，在與多角型底面5 1平行的平面中將工件W與 切割工具5 0相對移動，使得包含構成切割邊緣5 2、 53、54的側邊之底面5 1之各頂點a、b、c依序形 成與工件W的內角（I )輪廓相符之移動軌。由於與旋轉 加碼器1 5所偵測之切割工具5 0旋轉角度相對應對於x 本纸張尺度適用中國國家標準<CNS)A4規格（210 X 297公釐） -12- ------—II----裝！l· —--訂---------線 《請先閲讀背面之注意事項异填寫本頁) 4 6 03 6 6 A7 ___B7_ 五、發明說明（10) (請先閱讀背面之注意事項再填寫本頁) 軸伺服馬達5及Y軸伺服馬達7之作業施加回饋控制，藉 由同步狀相對驅動X軸台1及Y軸台2來達成工件W的移 動。在一平面中完成加工之後，以Z軸伺服馬達9 (在Z 軸進給）沿工具的中軸（代理軸線）移動切割工具5 0， 並在比上述平面更深之另一平面中相對移動工件W。藉由 重覆此程序，可對於工件W提供切割深度，故將內角（i )切成指定輪廓。圖示實施例中，以切割邊緣5 2、5 3 、5 4進行工具5 0作一次旋轉的切割。 參照圖6 ，現詳細描述工件W中之囊袋p的內角（i )的9 0度銳角切割情形。圖6顯示切割工具5 0相對於 工件W之移動軌》 首先’用於內角加工之工件W具有先前由端銑加工或 類似方式製成之囊袋P，囊袋P內角（i )處設有受到一 個想像弧線A、X軸、Y軸圍繞之一'個角區域，且亦由內 角加工所消除。 經濟部智慧財產局員工消費合作社印製 由於多個正三角型所示之切割工具5 〇的旋轉，頂點 (a )依序在X軸的各點Xl ' X2、上移動且隨後抵 達一個點（〇)(亦即X軸與Υ軸的交點）。隨後，頂點 (a )依序在Υ軸的各點yi、y2、上移動，因爲旋 轉工具5 0的中心（亦即轉軸）對於工件w呈相對位移， 而達成頂點（a )的此.動作。當頂點（3 )抵達點（y i ) 時’旋轉方向中之頂點（a )後方的頂點（c )則抵達點 χι ’因而完成工具5 0的二分之一轉。 以圖6的Q代表轉軸之移動軌，當頂點（a )依序在 本纸張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐〉 -13. 4 6 03 6 6 A7 B7 五、發明說明（11) (請先閱讀背面之注意事項"填寫本頁) 點Xi、X2、X3' 0、yi、y2、丫3上移動時，工具 50的轉軸在移動點qxi、qx2、QX3、qo、qy3 、Q y2上移動而最後抵達點Q yi，點Q y L與點d Χι相 符，每隔工具5 0的三分之一轉，工具轉軸即構成之一個 電路。 以此方式’工具5 0每隔三分之一轉即可以一個指定 深度切除角區域。工具5 0完成三分之一轉之後，則沿轉 軸移動一段預定長度，使得工具5 0以階狀在比先前平面 更深的一個新平面中完成三分之一轉。藉由重覆一系列的 上述操作，可在工件W上施加指定深度的內角加工。 亦即，因爲可藉由從內角的半徑（R)極限釋放一個 厚工具，來達成實施例的切割加工，故切割工具5 0不可 能在加工深囊袋時出現剛性不足的情形。 經濟部智慧財產局員工消費合作社印製 根據上述的切割方法，切割工具5 0的直徑並無限制 ，可切割如圖4所示的一個小曲率半徑R的角，同時利用 一個具有比上述角半徑r更大半徑的切割工具，並且可能 加工一個具有比多角底面5 1的內角更大針角之角。亦即 ’因爲在具有正三角型的一個底面之切割工具5 0中的內 角等於6 0度，所以可以切割方式形成具有如圖5所示的 一針角之角。 上述切割程序中，當經由切割移動的範圍使得切割工 具5 0與工件W之間相對移動之軌與工具底部保持固定呈 平行狀時，可將上述的略圓加工及斜角加工施加至如圖 7 A及7 B所示的各別垂直面後續之內角上。 -14- 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） d 6 03 6 6 A7 ____B7 五、發明說明（12) 此外在上述切割程序中，當與切割移動相對應地改變 切割工具5 0與工件W之間相對移動之軌與工具底部的平 行關係時，可能對於如圖8所示各別斜面後續之內角進行 加工。 工件在X軸與Y軸之移動應在同步的雙軸控制下進行 。同時’對於工件在Z軸（深度方向中之進給）的移動， 可選擇在X軸與Y軸各別移動的相同時間控制移動（亦即 同步控制）：或當在Z軸方向建立單一的切割深度時，進 行X軸與Y軸的移動（亦即非同步的控制）。 此外，本發明切割方法所用之切割工具並不限於具有 上述多角型底面之圖示的切割工具5 0。譬如圖9所示， 亦可能採用一個二葉狀及拋開式切割工具6 0 *其具備設 有構成上述切割邊緣的可脫離式尖端6 2、6 3、6 4之 一個工具體。此外可由另一個具有兩葉或四葉輪廓之拋開 式工具所取代。 最後，熟悉本技藝者瞭解：上述描述係爲所揭露的切 割方法及工具之部份實施例，本發明可有多種變化及修改 — II------1---裝 i — — 訂·!1線 <請先閱讀背面之注意事項两填寫本頁) 圍 範 與 神 精 的 明 發 本 離 背 不 而 經濟部智慧財產局員工消費合作钍印製 本紙張又度適用中國國家標準（CNS)A4規格（210*297公釐> -15-Consumer cooperation of the Intellectual Property Bureau of the Ministry of Economic Affairs ii. Printing 5. Description of invention (7) y 3 points q X 1 points q X 2 points QX 3 points Q 〇 points qy 3 points qy 2 points R The drawing illustrates an embodiment of the present invention. "Fig. 1 shows a machine tool for carrying out the internal corner cutting method of the present invention. This machine tool has a base 70;-an X-axis stage 1; a Y-axis stage 2:- A mandrel shank 3; and a main mandrel 4. The X-axis stage 1 is movably arranged on the guide rail 71 of the base 70 in the X-axis direction, and the Y-axis stage 2 is movably arranged on the guide rail 72 on the X-axis stage 1 in the Y-axis direction. The mandrel shank 3 is displaceably arranged on the guide rail 7 3 of the base 70 in the Z-axis direction. The main mandrel 4 is attached to the mandrel shank 3. A workpiece W to be processed is supported on the Y-axis table 2 via An X-axis feed mechanism 6 driven by an X-axis servo motor 5 moves the X-axis stage 1 to the X-axis direction. The Y-axis stage 2 is moved to the Y-axis direction via a Y-axis feed mechanism 8 driven by a Y-axis servo motor 7. The mandrel shank 3 is moved to the Z-axis direction via a Z-axis feed mechanism 10 driven by a Z-axis servo motor 9. X-, Y-, and Z-axis separate mounting --- r --- order --------- line (please read the note f on the back before filling this page) This paper size applies to China National Standard (CNS) A4 specification (210 X 297 mm) -10- 4 6 0 3 6 6 A7 B7 V. Description of the invention (8) Rotary coders 1, 1 and 2 of the motors 5, 7 and 9 '1 3 〇 < Please read the notes on the back first and fill in this page) The main spindle 4 is driven by a spindle motor 14 and the spindle motor 1 4 is attached with a rotary encoder 15 to detect the heart The rotation angle of the shaft 4, the main spindle 4 is provided with a cutting tool 50. The machine tool of the embodiment is the same as a digital control type machine including a digital control unit 20, and inputs the position and rotation angle related information of the rotary coders 1 1, 1 2, 1 3, and 15 separately. Number control unit 20. The unit 20 controls the rotation of the main mandrel 4 by the operation of the mandrel motor 14 and the servo motors 5, 7, 9 of the respective shafts in accordance with a predetermined machining program. Figures 2 and 3 show a cutting tool for performing the internal corner cutting method of the present invention. Please understand that Figure 2 shows a cutting tool with its top surface facing upside down, and Figure 3 shows a bottom view of the cutting tool. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economics Basically, the cutting tool of the present invention is a rotary cutting tool, and the cutting tool is on at least one side of the bottom of a polygonal shape (such as a triangular shape, a square shape, a pentagonal shape, etc.) Or one side of the polygonal side has a cutting edge green. In the illustrated embodiment, the cutting tool 50 includes a main body 50a. The main body 50a has a regular triangular bottom surface 51 and three cutting edges 52 and 5 formed on each side of the bottom surface 51. 3. 54. The cutting edges 52, 53, 54 are formed to extend in front of the respective vertices a, b, c in the direction of rotation of the cutting tool 50, and have substantially half the length of each side. In the direction of rotation of the tool 50, behind the respective cutting edges on the bottom surface 51, there is a separate guide to the other 11 This paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm wisdom of the Ministry of Economic Affairs) Printed by the Consumer Cooperative of the Property Bureau 6 03 6 6 A7 _____B7_ V. Description of the invention (9) The respective "overflow" angles of the cutting angles (ie, flank 5 5, 5, 6, 5 7). In this embodiment The cutting edges 5 2, 5 3, 5 4 are formed on the respective outer ridge lines 5 2 a, 5 3 a, 5 4 a extending from the vertices a, b ′ c in the axial direction of the tool 50, respectively. 50 includes a columnar block 58, which passes through the center of the regular triangular bottom surface 51 and extends axially along the tool 50. When held by an unillustrated block of the main spindle 4, the block 5 8 is also rotated counterclockwise along the tool 5 ◦ axis of Figures 2 and 3. Please understand that the disintegration groove 5 9 is formed near the cutting edges 52, 53, 54 (front side) to disintegrate the chips. The disintegration groove 5 9's The operation can change the discharged chips to guide the workpiece W, so the chips are solidified along the grooves 59. As a result, the chips are disintegrated by contact with the workpiece W. Furthermore, the chips are provided. The groove 5 9 will help to form the sharp nose of the cutting edge 5 2, 5 3, 5 4. Therefore, by providing a cutting edge with a sharp nose, the cutting resistance can be reduced and the workability is improved = therefore, it has a broken groove The 5 9 cutting tool 5 0 is suitable for the current cutting method to change the cutting width. Please understand that it is only necessary to provide the disintegration groove 5 9 according to the material of the workpiece W. When it is needed in a pouch P of the workpiece (W) When cutting to form an internal angle (1), the rotation of the cutting tool 50 is first performed with the main spindle 4. Then, the workpiece W and the cutting tool 50 are relatively moved in a plane parallel to the polygonal bottom surface 51, so that the The vertices a, b, and c of the bottom surface 5 1 constituting the sides of the cutting edges 5 2, 53, 54 sequentially form a moving track that conforms to the contour of the internal angle (I) of the workpiece W. Since it is in line with the rotary coder 15 Detection of cutting tool 50 rotation angle corresponding to x This paper size applies Chinese National Standard < CNS) A4 specification (210 X 297 mm) -12- ---------- II ---- install !! l · ——— Order --------- line 《Please read the notes on the back first and fill in this page） 4 6 03 6 6 A7 ___B7_ 5. Description of the invention (10) (Please read the notes on the back first Please fill in this page again.) The axis servo motor 5 and Y axis servo motor 7 work with feedback control, and the X axis stage 1 and Y axis stage 2 are driven relative to each other in synchronization to achieve the movement of the workpiece W. After machining is completed in one plane, the Z-axis servo motor 9 (feed in the Z-axis) is used to move the cutting tool 50 along the center axis (agent axis) of the tool, and the workpiece W is relatively moved in another plane deeper than the above plane. . By repeating this procedure, the cutting depth can be provided for the workpiece W, so the inner angle (i) is cut into a specified contour. In the embodiment shown in the figure, the cutting edge 5 2, 5 3, and 5 4 are used to perform a cutting by rotating the tool 50. Referring to FIG. 6, a 90-degree acute-angle cutting situation of the inner angle (i) of the pouch p in the workpiece W will now be described in detail. Fig. 6 shows the movement path of the cutting tool 50 relative to the workpiece W. "First, the workpiece W for internal corner processing has a pocket P previously made by end milling or the like, at the inner corner (i) of the pocket P There is an angular area surrounded by an imaginary arc A, X axis, and Y axis, and it is also eliminated by internal corner processing. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. Due to the rotation of the cutting tool 50 shown by a plurality of positive triangles, the vertex (a) sequentially moves on each point Xl 'X2 of the X axis and then reaches a point ( 〇) (that is, the intersection of the X axis and the Y axis). Subsequently, the vertex (a) sequentially moves on the points yi, y2 of the y-axis, because the center of the rotary tool 50 (ie, the rotation axis) is relatively displaced with respect to the workpiece w, and this action of the vertex (a) is achieved. . When the vertex (3) reaches the point (y i), the vertex (c) behind the vertex (a) in the direction of rotation reaches the point χι ′ and thus completes a half turn of the tool 50. Take the Q of Figure 6 as the moving track of the rotation axis. When the vertex (a) is applied to the national standard (CNS) A4 specification (210 X 297 mm>) in this paper order, -13. 4 6 03 6 6 A7 B7 5 、 Explanation of invention (11) (Please read the precautions on the back & fill in this page first) When points Xi, X2, X3 '0, yi, y2, and y3 are moved, the rotation axis of tool 50 is at the movement points qxi, qx2, QX3, qo, qy3, Q y2 move up and finally reach the point Q yi. The point Q y L coincides with the point d Xι. Every one third of the tool's 50 revolutions, the tool shaft constitutes a circuit. In this way 'Tool 50 can cut off the angle region at a specified depth every third revolution. After tool 50 completes a third revolution, it moves along the rotation axis for a predetermined length, so that tool 50 is stepwise in the plane of the previous plane. One third of the rotation is completed in a deeper new plane. By repeating a series of the above operations, an internal angle machining of a specified depth can be applied to the workpiece W. That is, since the radius from the internal angle (R ) Extremely release a thick tool to achieve the cutting process of the embodiment, so the cutting tool 50 cannot be added Insufficient rigidity occurs in deep-seated bags. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs According to the cutting method described above, the diameter of the cutting tool 50 is not limited, and it can cut a small radius of curvature R as shown in Figure 4. While using a cutting tool with a larger radius than the above-mentioned angular radius r, and it is possible to machine an angle with a larger needle angle than the inner angle of the polygonal bottom surface 51. That is, because in a The inner angle of the bottom cutting tool 50 is equal to 60 degrees, so it can be cut to form an angle with a needle angle as shown in Fig. 5. In the above cutting procedure, when the cutting tool moves through the range of the cutting tool 50 and the When the relative movement track between the workpieces W and the bottom of the tool are kept fixed in parallel, the above-mentioned slightly round machining and bevel machining can be applied to the subsequent inner corners of the respective vertical planes as shown in Figs. 7A and 7B. -14- This paper size is in accordance with Chinese National Standard (CNS) A4 (210 X 297 mm) d 6 03 6 6 A7 ____B7 V. Description of the invention (12) In addition, in the above cutting procedure, when it is relative to the cutting movement When the parallel relationship between the track of the relative movement between the cutting tool 50 and the workpiece W and the bottom of the tool should be changed, it is possible to process the subsequent internal angles of the respective inclined planes as shown in Figure 8. Movement of the workpiece in the X-axis and Y-axis It should be performed under the synchronous two-axis control. At the same time, for the movement of the workpiece in the Z-axis (feed in the depth direction), you can choose to control the movement at the same time as the X-axis and Y-axis respectively (that is, synchronous control) : Or when a single cutting depth is established in the Z-axis direction, the X-axis and Y-axis movements are performed (that is, asynchronous control). In addition, the cutting tool used in the cutting method of the present invention is not limited to those having the above-mentioned polygonal bottom surface The illustrated cutting tool 50. For example, as shown in FIG. 9, it is also possible to use a two-leaf and throw-away cutting tool 60 * having a tool body provided with a detachable tip 6 2, 6 3, 6 4 constituting the cutting edge. It can also be replaced by another throwaway tool with a two or four leaf profile. Finally, those skilled in the art understand that the above description is part of the disclosed cutting method and tool embodiment, and that the present invention may have various changes and modifications. ·! 1 line < Please read the notes on the back first and fill out this page.) Fanfan and Shenjing's Mingfa are departed, but the consumer cooperation between the Intellectual Property Bureau of the Ministry of Economic Affairs and the printed paper is also applicable to Chinese national standards. (CNS) A4 size (210 * 297 mm > -15-